Home / 2,767.63-3,817.42-1,647.70

Finding the Fourth Proportional to 2,767.63, 3,817.42 and 1,647.70

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Solution

The fourth proportional to 2,767.63, 3,817.42 and 1,647.70 is: 2,272.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,767.63 : 3,817.42 = 1,647.70 : x
  2. Step 2: Convert to fraction form
    2,767.63/3,817.42 = 1,647.70/x
  3. Step 3: Cross multiply
    2,767.63x = 3,817.42 × 1,647.70
  4. Step 4: Simplify right side
    2,767.63x = 6,289,962.93
  5. Step 5: Solve for x
    x = 6,289,962.93/2,767.63
  6. Step 6: Final answer
    x = 2,272.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.